Standardize usage of virtual/override/final in components/

components/component_updater/request_sender.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef COMPONENTS_COMPONENT_UPDATER_REQUEST_SENDER_H_
 #define COMPONENTS_COMPONENT_UPDATER_REQUEST_SENDER_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 16 matching lines @@
 // of responsibility design pattern, where the urls are tried in the order they
 // are specified, until the request to one of them succeeds or all have failed.
 class RequestSender : public net::URLFetcherDelegate {
  public:
   // The |source| refers to the fetcher object used to make the request. This
   // parameter can be NULL in some error cases.
   typedef base::Callback<void(const net::URLFetcher* source)>
       RequestSenderCallback;
 
   explicit RequestSender(const Configurator& config);
-  virtual ~RequestSender();
+  ~RequestSender() override;
 
   void Send(const std::string& request_string,
             const std::vector<GURL>& urls,
             const RequestSenderCallback& request_sender_callback);
 
  private:
   void SendInternal();
 
   // Overrides for URLFetcherDelegate.
-  virtual void OnURLFetchComplete(const net::URLFetcher* source) override;
+  void OnURLFetchComplete(const net::URLFetcher* source) override;
 
   const Configurator& config_;
   std::vector<GURL> urls_;
   std::vector<GURL>::const_iterator cur_url_;
   scoped_ptr<net::URLFetcher> url_fetcher_;
   std::string request_string_;
   RequestSenderCallback request_sender_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(RequestSender);
 };
 
 }  // namespace component_updater
 
 #endif  // COMPONENTS_COMPONENT_UPDATER_REQUEST_SENDER_H_